Improvement in planing-machines



UNITED STATES JOSEPH DIXON, OF NEW YORK, N. Y.

IMPROVEMENT IN PLANING-MACHINES.

Specification forming part of Letters Patent No. 54,511, dated May 8,1866.

lo all whom it may concern:

Be it known that l, JOSEPH DIXON, of 761 Second avenue, in the city,county, andState of New York, have invented 'a new' and Improved MatchingAttachmen t for Plauers 5 and I do hereby declare that the following isa full, clear, and exact description thereof, which will enable othersskilled in the art to make and use the same, reference being had to theaccompanying drawings, forming part of this specification, in which-Figure l is a front view, and Fig. 2 is a side view, ot' my improvedattachment.

Similar letters of reference indicate like parts.

This invention relates to an improved method or device for regulatingthe vertical 'set of tonguing and grooving attachments inplaning-machines, and which gives several desirable advantages over thepresent devices used for that purpose. A

My invention consists iu fixing the knifeholding head rigidly to itsshaft and supporting the shaft on au adjustable or sliding bedplate, sothat the adjustment of the knives or cutters may be made expeditiouslyand While the machine is in full motion by adjusting the said bed-plate,and which also admits of securing the knife-holding head to its shaft ina iXed manner, so as to be beyond liability of displacementbycncountering knots, 8vo., and, further, allows the matchingknives tobe promptly removed out ot" the way when the planer is to be used forsurfacing by dropping them below the surface of the planing-bed.

Having described the nature of my invention, I will proceed to describeits construct-ion and operation. V

The main bed D D, Fig. 2, ot' the atta' hment is secured to the side ofthe planer so as not to project above the surface ot the planing-bed bya set-screw which passes through the nut P, and the attachment isadjusted lat erally for different widths of boards by the said screw andnut P, the foot Q, sliding on a guide when such lateral adjustment ismade.

D D is the main bed of the attachment, and

fixed to its shaft B B. The shaft B is supported on the adjustablebed-plate E by the standards e c. C is a belt-pulley by which thecutter-shaft B is driven.

The vertical adjustment of the knives is made or eected hy a screw, l,which is held by a collarin a iixed standard, J, and engages with astud, H, which projects from the sliding bed-plate, and is operated bythe gears K L and crank l.

The adjustablebed-plate E, Fig. l, is provided with an index or pointer,g, which travels over the face of a fixed graduated plate, f, andindicates the vertical set or position of the cutters ct a.

n m, Fig. 2, is a set-screw for clamping the adjustable bed-plate Efirmly in position, and occupies a slot, o, in the plate E. By thesemeans the vertical set of the cutters is easily regulated for differentthicknesses of stuff or boards without stopping the machine, andthecutters are held to their work in a reliable manner, displacement of thesame heilig impossible without breaking of parts.

When the planer is to be used for surfacing orplaning only thecutter-head A is run down by the crank l, so as to be dropped below thesurface ot' the planing-bed.

Having thus described my invention, Iclaim as new and desire to secureby Letters Pateut- The combination ot' cutter-head A, shaft B,adjustable bed E, indicator g f, and adjustingscrew I, substantially iuthe manner and for the purpose set forth.

The above specification ot' my invention signed by me this 2d day ofDecember, 1865.

JOSEPH DIXON.

Witnesses:

JOHN OOGHRANE, ANDREW J. TODD.

